The Peine Water Board, hereinafter referred to as the AG, intends to carry out the cleaning and visual inspection of the

sewer network in the village of Holle (1st section).

The performance of the optical inspection must be fulfilled in the period from 13.11.2023 to 26.04.2024.

The following must be cleaned and examined:

- approx. 9,945 m SW main sewer DN 150-400 (approx. 270 pipes); Depth between 1.0 and 5.5 m and pipe lengths of approx. 2.0 to 103.0 m

- Approx. 275 SW main sewer shafts with depths of 0.6 to 6.2 m

- public connecting lines on approx. 410 properties with approx. 270 SW house control shafts, public connecting lines are to be examined from the main sewer or a house control shaft. Private connecting lines must also be examined as far as technically possible.

- approx. 8,235 m RW main sewer DN 150-1000 (approx. 235 pipes); Depth between 0.8 and 3.8 m and pipe lengths of approx. 1.0 to 143.0 m

- Approx. 250 RW main sewer shafts with depths from 0.5 to 4.0 m

- public connecting lines on approx. 410 properties and approx. 275 lines of road drains